Power Supplies - Showing 1921 - 1944 of 17937 Products
Refurbished: KHACHIMO PSU For NEC AIO i5 HM55 HM65 HM75 120W Power Supply ...
- Model #: 744623316529
- Item #: 9SIVB8UKD46502
- Return Policy: Magicpower Return Policy
Refurbished: For Power Intelligent Heater HAU03A-01
- Model #: 722954728129
- Item #: 9SIVB8UKAA7484
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Module For ER11040T5 ER11040/T5
- Model #: 753525990393
- Item #: 9SIVB8UKAA7845
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for S26113-E462-V20 industrial power supply FS216U300PCW
- Model #: 792597985272
- Item #: 9SIVB8UKX57245
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-500AB-32A 901759-013HP power supply PCG007 PA-3401-1HA ...
- Model #: 726727729474
- Item #: 9SIVRWKKXA3080
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for GW-ERP2U700 (90 +) Power Supply 730W ERP2U700
- Model #: 792597984725
- Item #: 9SIVB8UKX57165
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-350AB-24C 350W NAS industrial power supply
- Model #: 731029999807
- Item #: 9SIVRWKKXD1359
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO T440 R540 450W Switching Power Supply D450E-S1 HXF7Y 0HXF7Y ...
- Model #: 744623310039
- Item #: 9SIVB8UKD12080
- Return Policy: Magicpower Return Policy
Refurbished: For EFRP-465 460W Disk Array, Storage Redundant Power Supply 1pcs
- Model #: 726727731279
- Item #: 9SIVRWKKXA3366
- Return Policy: Nytke team Return Policy
Refurbished: GW-T150WV12 150W Switching Device Power Module Industrial Power Supply
- Model #: 753525934649
- Item #: 9SIVB8UKA99257
- Return Policy: Magicpower Return Policy
Refurbished: ForSDA10-4850 communication 48V50AH RV solar outdoor power supply ...
- Model #: 703454722831
- Item #: 9SIVB8UKAJ6759
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for P17022-101 P17021-001 P18510-001 P17023-B21 1600W Power ...
- Model #: 792597727209
- Item #: 9SIVB8UKX32619
- Return Policy: Magicpower Return Policy
Refurbished: 700W Workstation Power Supply Z440 719795-005 858854-001 809053-001 ...
- Model #: 753525957181
- Item #: 9SIVB8UKAA8964
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RD330 340 530 630 540 640 800W Power Supply DPS-800RB C ...
- Model #: 744623299037
- Item #: 9SIVB8UKCU6590
- Return Policy: Magicpower Return Policy
Refurbished: For MIN-6251P Server Power Module 250W
- Model #: 726727723823
- Item #: 9SIVRWKKXA2379
- Return Policy: Nytke team Return Policy
Refurbished: For RP5700 240W Small 24 Pin Power Supply DPS-240FB-A 381024-001 ...
- Model #: 726727733358
- Item #: 9SIVRWKKXA3699
- Return Policy: Nytke team Return Policy
Refurbished: 2000W Power Supply GW-CDM2000AA
- Model #: 703454716267
- Item #: 9SIVSY0KUT4801
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For Eltek Flatpack S 24/1000 HE High Efficiency Rectifier 241122.205 24V DC
- Model #: 753525933772
- Item #: 9SIVB8UKA99159
- Return Policy: Magicpower Return Policy
Refurbished: 2130W PSSF222201A H66158-010
- Model #: 724780183868
- Item #: 9SIVSY0KUT3901
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 2200W Power Supply DPS-2200AB-2 D DPS-2200AB-2D
- Model #: 703454717073
- Item #: 9SIVB8UKAJ6161
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 078-000-063 VNX5100 VNX5300 CX4-480 CX4-120 1200W
- Model #: 716837083566
- Item #: 9SIVB8UKX57580
- Return Policy: Magicpower Return Policy
Refurbished: ECC500 E151CMUA3 Power Supply For SMU03A
- Model #: 753525990188
- Item #: 9SIVB8UKAA7803
- Return Policy: Magicpower Return Policy
Refurbished: For Z420 Power Supply DPS-600UB A 623193-001 632911-001 Fidelity 600W
- Model #: 726727729825
- Item #: 9SIVRWKKXA3081
- Return Policy: Nytke team Return Policy
Refurbished: 1100W Power Supply 700-014189-0000 FSF056
- Model #: 753525941203
- Item #: 9SIVB8UKAA4957
- Return Policy: Magicpower Return Policy
Tips for Buying a Computer Power Supply Unit (PSU)
Introduction
A computer power supply is one of the most crucial components in a computer, as it is responsible for providing stable and regulated power for the system. If you are shopping for a computer power supply, finding the ideal one will require you to consider several important criteria. Those criteria include the size and form factor of the case, the wattage requirement of the system, efficiency, and your internal cabling preference.
Size Standards
Computer power supplies are available in a variety of different sizes and form factors. It is crucial that the power supply unit (PSU) you select matches the size requirements of your case and motherboard. If you have a Mini ITX case for example, you cannot utilize a standard ATX power supply. For more information about power supply form factors, see below.
- ATX
The standard power supply size that will fit most mid-size and full-size tower cases. Some micro ATX cases can utilize ATX power supplies as well. - Mini ITX
Mini ITX power supplies are designed specifically for mini ITX systems but may also fit other small form factor computer cases. - SFX
SFX computer power supplies are smaller than standard ATX PSUs and are meant for micro ATX and other small form factor computer cases. - TFX
Another small form factor computer power supply that is thinner to fit micro ATX, Mini ITX, and other smaller systems.
Wattage
A computer power supply’s wattage rating is a measurement of how much power it can provide to the hardware. When shopping for a power supply, you need to consider how much power your computer system requires. To calculate your system’s power requirement, add up the power draw for all the components.
Start with the motherboard and processor, and then include graphics cards, system memory, storage devices, and other expansion cards. For an even better estimate, you should include USB devices, internal fans, and other accessories. Once you have your estimate, try to find a computer power supply that is capable of at least that. For a larger safety margin, you should get a PSU that is well above that minimum.
Cable Management
There are two cable management options for computer power supplies, modular and non-modular. Modular cabling allows you to connect and disconnect internal power cables from the power supply itself, so you can avoid having unused cables and connectors dangling inside the case. Computer power supplies that feature modular cabling typically cost more than those without it.
Efficiency
The efficiency of a computer power supply is a ratio of how much power it provides and how much power it draws. For instance, a power supply that provides 200 watts of power but pulls 400 watts from a power outlet has a 200/400 or 50% efficiency ratio. The more efficient your computer power supply is, the less it will cost you to operate.
One metric you can use to gauge efficiency is what level of 80 PLUS® certification a power supply has, if it any. The different levels of 80 PLUS certification include 80 PLUS, 80 PLUS Bronze, 80 PLUS Silver, 80 PLUS Gold, 80 PLUS Platinum, and 80 PLUS Platinum. The most basic certification is 80 PLUS, which indicates an efficiency rating of at least 80%. The other certifications rank from Bronze to Titanium, with the latter being the highest attainable. If computer power supply efficiency is a big concern for you, try to find one with a high level of 80 PLUS certification.
